From fd9d6baea311d9b227b130749647a86838ba2ccc Mon Sep 17 00:00:00 2001
From: Igor Zinkovsky <igor@deno.com>
Date: Tue, 13 Jun 2023 17:49:57 -0700
Subject: feat(kv) queue implementation (#19459)

Extend the unstable `Deno.Kv` API to support queues.
---
 ext/kv/interface.rs | 14 +++++++++++++-
 1 file changed, 13 insertions(+), 1 deletion(-)

(limited to 'ext/kv/interface.rs')

diff --git a/ext/kv/interface.rs b/ext/kv/interface.rs
index 31b7638b4..b67ee1243 100644
--- a/ext/kv/interface.rs
+++ b/ext/kv/interface.rs
@@ -25,6 +25,8 @@ pub trait DatabaseHandler {
 
 #[async_trait(?Send)]
 pub trait Database {
+  type QMH: QueueMessageHandle + 'static;
+
   async fn snapshot_read(
     &self,
     requests: Vec<ReadRange>,
@@ -35,6 +37,16 @@ pub trait Database {
     &self,
     write: AtomicWrite,
   ) -> Result<Option<CommitResult>, AnyError>;
+
+  async fn dequeue_next_message(&self) -> Result<Self::QMH, AnyError>;
+
+  fn close(&self);
+}
+
+#[async_trait(?Send)]
+pub trait QueueMessageHandle {
+  async fn take_payload(&mut self) -> Result<Vec<u8>, AnyError>;
+  async fn finish(&self, success: bool) -> Result<(), AnyError>;
 }
 
 /// Options for a snapshot read.
@@ -242,7 +254,7 @@ pub struct KvMutation {
 /// keys specified in `keys_if_undelivered`.
 pub struct Enqueue {
   pub payload: Vec<u8>,
-  pub deadline_ms: u64,
+  pub delay_ms: u64,
   pub keys_if_undelivered: Vec<Vec<u8>>,
   pub backoff_schedule: Option<Vec<u32>>,
 }
-- 
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